A-gapfill 600 is an exceptionally soft, highly compliant gap filling interface pad with a thermal conductivity of 3 W/mK. These outstanding properties are the result of a proprietary boron nitride filler in the composition. The high conductivity, in combination with extreme softness produces incredibly low thermal resistances. A-gapfill 600 is naturally tacky and requires no additional adhesive coating that can inhibit thermal performance. A-gapfill 600 is electrically insulating, stable from –45°C to 200°C and meets UL 94 V0 rating.

FEATURES

• Very high compliancy for low stress applications

• 3 W/mK thermal conductivity

• Available in thicknesses from 0.020” - 0.200” (0.5mm - 5.0mm)

• Naturally tacky, needs no further adhesive coating

APPLICATIONS

• Cooling components to the chassis or frame

• High speed mass storage drives

• RDRAM memory modules

• Heat pipe thermal solutions

• Automotive engine control units

• Telecommunications hardware

Item

A-gapfill 600

Construction & Composition

Boron nitride filled
silicone elastomer

Color

Blue-Violet

Thickness Range

0.020” (0.50mm) - 0.200” (5.08mm)

Thickness Tolerance

± 10%

Density (g/cc)

1.34

Hardness (Shore 00)

51; 3 seconds
48; 30 seconds

Tensile Strength

15 psi

% Elongation

75

Outgassing Conditions

Post cured

Outgassing TML (weight %)

0.13%

Outgassing CVCM (weight %)

0.05%

UL Flammability Rating

94 V0

Temperature Range

-45°C to 200°C

Thermal Conductivity

3.0 W/mK

Thermal Impedance
@ 40 mils, 10 psi
@ 1 mm, 69kPa

0.62°C–in2/W
4.00°C–cm2/W

Thermal Expansion

430 ppm/°C

Volume Resistivity

2 x 1013 ohm-cm

Dielectric Constant @ 1MHz

331%

STANDARD THICKNESSES

0.020 to 0.200-inch (0.5 to 5.0mm)

0.020 to 0.200-inch thick material available in 0.010-inch (0.25mm) increments

TACKY ONE SIDE ONLY
A-gapfill 600 is naturally tacky on both sides. A-gapfill 600 can be provided tacky on one side only. This is indicated by the suffix “DC1”. This option offers good separation properties allowing the tacky side to stick to the heatsink/chasis/cold plate/etc. and the other “dry” side to release easily from the component(s).

REINFORCEMENT
Fiberglass is required in 0.020” (0.51mm) and 0.030” (0.76mm). Thicknesses of 0.040” (1.02mm) and above do not require reinforcement. Data for design engineer guidance only. Observed performance varies in application. Engineers are reminded to test the material in application.